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...edhat.com> > Acked-by: Arnd Bergmann <arnd at arndb.de> > --- > arch/s390/include/asm/barrier.h | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > index c358c31..fbd25b2 100644 > --- a/arch/s390/include/asm/barrier.h > +++ b/arch/s390/include/asm/barrier.h > @@ -26,18 +26,21 @@ > #define wmb() barrier() > #define dma_rmb() mb() > #define dma_wmb() mb() > -#define smp_mb() mb() > -#define smp_rmb() rmb() > -#define smp_wmb()...

...edhat.com> > Acked-by: Arnd Bergmann <arnd at arndb.de> > --- > arch/s390/include/asm/barrier.h | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > index c358c31..fbd25b2 100644 > --- a/arch/s390/include/asm/barrier.h > +++ b/arch/s390/include/asm/barrier.h > @@ -26,18 +26,21 @@ > #define wmb() barrier() > #define dma_rmb() mb() > #define dma_wmb() mb() > -#define smp_mb() mb() > -#define smp_rmb() rmb() > -#define smp_wmb()...

....de> > > > --- > > > arch/s390/include/asm/barrier.h | 15 +++++++++------ > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > index c358c31..fbd25b2 100644 > > > --- a/arch/s390/include/asm/barrier.h > > > +++ b/arch/s390/include/asm/barrier.h > > > @@ -26,18 +26,21 @@ > > > #define wmb() barrier() > > > #define dma_rmb() mb() > > > #define dma_wmb() mb() > > > -#define sm...

....de> > > > --- > > > arch/s390/include/asm/barrier.h | 15 +++++++++------ > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > index c358c31..fbd25b2 100644 > > > --- a/arch/s390/include/asm/barrier.h > > > +++ b/arch/s390/include/asm/barrier.h > > > @@ -26,18 +26,21 @@ > > > #define wmb() barrier() > > > #define dma_rmb() mb() > > > #define dma_wmb() mb() > > > -#define sm...

...; arch/s390/include/asm/barrier.h | 15 +++++++++------ > > > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > > > index c358c31..fbd25b2 100644 > > > > > --- a/arch/s390/include/asm/barrier.h > > > > > +++ b/arch/s390/include/asm/barrier.h > > > > > @@ -26,18 +26,21 @@ > > > > > #define wmb() barrier() > > > > > #define dma_rmb() mb() > > > &g...

...; arch/s390/include/asm/barrier.h | 15 +++++++++------ > > > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > > > index c358c31..fbd25b2 100644 > > > > > --- a/arch/s390/include/asm/barrier.h > > > > > +++ b/arch/s390/include/asm/barrier.h > > > > > @@ -26,18 +26,21 @@ > > > > > #define wmb() barrier() > > > > > #define dma_rmb() mb() > > > &g...

...by: Michael S. Tsirkin <mst at redhat.com> Acked-by: Arnd Bergmann <arnd at arndb.de> --- arch/s390/include/asm/barrier.h | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h index c358c31..fbd25b2 100644 --- a/arch/s390/include/asm/barrier.h +++ b/arch/s390/include/asm/barrier.h @@ -26,18 +26,21 @@ #define wmb() barrier() #define dma_rmb() mb() #define dma_wmb() mb() -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() - -#define smp_store_release(p, v)...

...rnd Bergmann <arnd at arndb.de> > > --- > > arch/s390/include/asm/barrier.h | 15 +++++++++------ > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > index c358c31..fbd25b2 100644 > > --- a/arch/s390/include/asm/barrier.h > > +++ b/arch/s390/include/asm/barrier.h > > @@ -26,18 +26,21 @@ > > #define wmb() barrier() > > #define dma_rmb() mb() > > #define dma_wmb() mb() > > -#define smp_mb() mb() > > -#define sm...

...- > > > > arch/s390/include/asm/barrier.h | 15 +++++++++------ > > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > > index c358c31..fbd25b2 100644 > > > > --- a/arch/s390/include/asm/barrier.h > > > > +++ b/arch/s390/include/asm/barrier.h > > > > @@ -26,18 +26,21 @@ > > > > #define wmb() barrier() > > > > #define dma_rmb() mb() > > > > #define dma_wmb() m...

.../asm/barrier.h | 15 +++++++++------ > > > > > > 1 file changed, 9 insertions(+), 6 deletions(-) > > > > > > > > > > > > diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h > > > > > > index c358c31..fbd25b2 100644 > > > > > > --- a/arch/s390/include/asm/barrier.h > > > > > > +++ b/arch/s390/include/asm/barrier.h > > > > > > @@ -26,18 +26,21 @@ > > > > > > #define wmb() barrier() > > > > > > #define dma_rmb()...

Changes since v2: - extended checkpatch tests for barriers, and added patches teaching it to warn about incorrect usage of barriers (__smp_xxx barriers are for use by asm-generic code only), should help prevent misuse by arch code to address comments by Russell King - patched more instances of xen to use virt_ barriers as suggested by Stefano Stabellini - implemented a 2 byte xchg on sh

Changes since v2: - extended checkpatch tests for barriers, and added patches teaching it to warn about incorrect usage of barriers (__smp_xxx barriers are for use by asm-generic code only), should help prevent misuse by arch code to address comments by Russell King - patched more instances of xen to use virt_ barriers as suggested by Stefano Stabellini - implemented a 2 byte xchg on sh

Changes since v1: - replaced my asm-generic patch with an equivalent patch already in tip - add wrappers with virt_ prefix for better code annotation, as suggested by David Miller - dropped XXX in patch names as this makes vger choke, Cc all relevant mailing lists on all patches (not personal email, as the list becomes too long then) I parked this in vhost tree for now, but the

Changes since v1: - replaced my asm-generic patch with an equivalent patch already in tip - add wrappers with virt_ prefix for better code annotation, as suggested by David Miller - dropped XXX in patch names as this makes vger choke, Cc all relevant mailing lists on all patches (not personal email, as the list becomes too long then) I parked this in vhost tree for now, but the

This is really trying to cleanup some virt code, as suggested by Peter, who said > You could of course go fix that instead of mutilating things into > sort-of functional state. This work is needed for virtio, so it's probably easiest to merge it through my tree - is this fine by everyone? Arnd, if you agree, could you ack this please? Note to arch maintainers: please don't

This is really trying to cleanup some virt code, as suggested by Peter, who said > You could of course go fix that instead of mutilating things into > sort-of functional state. This work is needed for virtio, so it's probably easiest to merge it through my tree - is this fine by everyone? Arnd, if you agree, could you ack this please? Note to arch maintainers: please don't